is this magnesium deficiency

I am growing in soil with roots organics soil and botanicare line of nutes. my ph level when i water is 6.4. The plants with the blotches are g13 haze, and the other one is nyc diesel, the biggest one is mob and the leaf tips are twisting around. And some of the stems are streaking with purple. Any advice would be greatly appreciated. Thanks.

what's your feed/flush schedule? Are you flushing 3x the pot capacity? 6.4 is good to start...but what's the runoff PH? I've also read twisting is usually ph lock. Good luck~

No magnesium defiency looks like small red dots on the leaf. It looks like you have nute lockout or your feeding too heavy. How long old is it? Whatirts the runoff ph? How much notes are you given it a gallon? How much light are you using and what type? These are all questions we need to know to answer it better.

that is fertilizer deficiency. it wants food, im sure the bottom leaves have been turning yellow and are dieing off. scroll through the plant problem stickies they have pics of all problems

nonuggets said:

i've heard that twisty leaves can b a sign of nute lock...but i don't know shit so disregard unless its seconded. what's your run off ph?

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I had very similar, and was told is a mag/cal deficiency. I started foliar feeding with a mix of 1 tsp/half gal of water, or 1 tbsp/gal and seems to have cleared up.
I am also putting down some crushed eggshells also, for the cal.

You need to check to pH of the runoff and see if it's out of whack and locking up something, That last pic looks as if it has multiple issues. I see burnt tips at top but yellowing near bottom, twisty leaves and way too much spacing in between nodes.

pH the runoff is a good start. If it's in the "good" range of 6.3-6.8 then IDK. I suggest you also get all your lights closer, even the plants in the background look stretched.

Edit-Also use some calmagplus to keep calcium and mag at acceptable levels at least a few times during veg.

Does not look like mg deficiency to me.

Here is what I do: Dasani water (a Coca-cola product) is flavored with magnesium sulfate. Every couple weeks, I get a big bottle of Dasani and put it in a spray bottle and then use the spray bottle to mist down the leaves (heavily) 2-3 times per week. I have not had to worry about mg deficiency ever since.

Some people say "use Epsom Salts", but who (except my Old Granny who soaks her feets in them) wants to fuck around with Epsom Salts?

Dasani water also has sodium (salt) added. not sure if thats good or not. but my doctor told me not to drink it very often.

Bonzo Mendoza said:

Does not look like mg deficiency to me.

Here is what I do: Dasani water (a Coca-cola product) is flavored with magnesium sulfate. Every couple weeks, I get a big bottle of Dasani and put it in a spray bottle and then use the spray bottle to mist down the leaves (heavily) 2-3 times per week. I have not had to worry about mg deficiency ever since.

Some people say "use Epsom Salts", but who (except my Old Granny who soaks her feets in them) wants to fuck around with Epsom Salts?

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Well I might be old but i use epsom salts for mag def and have never had a problem.Everyone does things a little different and I try not to put down anyones way of doing it.